One Circuit Design for Suppressing Surge Current of Switching Power Supply

2011 ◽  
Vol 58-60 ◽  
pp. 2670-2675 ◽  
Author(s):  
Jin Ming Li ◽  
Xu Yu Xie ◽  
Min Zhao ◽  
You Chun Ma ◽  
Qiu Lin Tan ◽  
...  
Keyword(s):  
Circuit Design ◽  
Power Supply ◽  
Test Results ◽  
Switching Power Supply ◽  
Paper Test ◽  
Switching Power ◽  
Surge Current

Based on the analysis of the causes for surge current of switching power supply and its harm, a circuit design suppressing surge current, which uses NMOSFET as the second switch , is represented in this paper. Test results show that: the method can suppress the surge current to a large extent and reduce the impacts on equipments. Due to improving the safety and the reliability of equipments, this circuit design is more popular in circuit design for suppressing surge current of switching power supply.

The Electric Car Charger Control Circuit Design and Analysis Module

2014 ◽  
Vol 971-973 ◽  
pp. 942-945
Author(s):  
Ying Chun Liu ◽  
Jian Ming Zhang ◽  
De Long Zhang ◽  
Yan Yu Wang ◽  
Chun Guang Hou ◽  
...  
Keyword(s):  
Circuit Design ◽  
Power Supply ◽  
Design Thinking ◽  
Control Circuit ◽  
Constant Current ◽  
Circuit Switching ◽  
Switching Power Supply ◽  
Switching Power ◽  
Electric Car ◽  
Front End

the article introduces theelectric car charger control circuit design thinking and ideas, the controlcircuit to be able to with the front-end circuit switching power supply and MCUto cooperate to complete the following phases the constant current and constantvoltage charging battery automatic conversion, and stable in each phase of thecurrent value or the voltage value. Analyze the circuit module, includingsampling module, PWM signal module, proportional amplifier module, PIadjustment module.

Study on Low-Power Intelligent Switching Power Supply

2013 ◽  
Vol 448-453 ◽  
pp. 2089-2092
Author(s):  
Zhong Xian Wang ◽  
Yong Geng Wei ◽  
Hai Feng Wang
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Circuit Design ◽  
Power Supply ◽  
Operating Parameters ◽  
Switching Power Supply ◽  
Switching Power ◽  
Status Monitoring ◽  
Hardware Circuit ◽  
Selection Of

New switching power supply gradually replaced the traditional linear power supply, but rarely has the operational status monitoring function. The design includes the main power supply and monitoring circuit design. The main circuit topology of the power supply is flyback DC-DC conversion body. The selection of the control circuit is current-controlled PWM chip. The monitoring circuit includes the design of detection and display circuit. The voltage and the current are detected respectively with the aid of the resistive subdivision in the testing circuit. The display circuit adopts PIC for sampling signal processing, and the dot matrix LCD12864 is used to display this power operating parameters. The power supply control system is simulated in Saber and Proteus software which monitors and observes the various parts of the circuit voltage and the output waveform. Finally, the hardware circuit is built and tested to prove the designed digital intelligent power feasibility.

The Design of 5V/100W High Frequency Switching Power Supply

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
High Efficiency ◽  
Design Method ◽  
Switching Power Supply ◽  
Widespread Application ◽  
Forward Converter ◽  
Switching Power ◽  
Dc Power ◽  
Important Field

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.

H∞ Control to the BUCK-Type Switching Power Supply with Small Perturbation

2013 ◽  
Vol 347-350 ◽  
pp. 1358-1362
Author(s):  
Zi Сheng Li ◽  
Li Xu ◽  
Bao Shan Yuan
Keyword(s):  
Power Supply ◽  
Current Control ◽  
Control Mode ◽  
State Variables ◽  
Switching Power Supply ◽  
Small Perturbations ◽  
Switching Power ◽  
Current Sampling ◽  
Output Filter ◽  
Filter Capacitor

The purpose in this paper is the design of the control to switching power supply for small perturbations. By the theoretical analysis and calculation, with the output filter inductor current and filter capacitor voltage switching power supply as two state variables, the conclusion is that control of the output filter inductor current sampling do well in the anti-jamming. The simulation is made for verification. And comparing the results, the current control mode shows a very strong anti-interference ability.

Photoelectric Sensor Circuit and Image Segmentation Method for Radar System

2021 ◽  
Vol 16 (2) ◽  
pp. 170-178
Author(s):  
Ting Da
Keyword(s):  
Loss Function ◽  
Power Supply ◽  
Three Dimensional ◽  
Reverse Bias Voltage ◽  
Switching Power Supply ◽  
Phase Compensation ◽  
Image Region ◽  
Low Input ◽  
Switching Power ◽  
Photoelectric Sensor

In this exploration, based on the principle and system parameters of laser three-dimensional (3D) radar imaging technology, the corresponding photoelectric sensor circuit scheme is formulated. The sense circuit of avalanche photon diode (APD) converts the signal through the transresistance amplifier circuit. Then, LMH6629 is selected as a precision amplifier with low input noise voltage and low input error current. The capacitance is used as a compensation element to compensate the phase. For the power supply scheme, choosing the mode of switching power supply and LDO to work together can improve the efficiency of power supply and reduce the output of current ripple. At the same time, semantic segmentation is carried out for the obtained photoelectric images. Based on the traditional spatial pyramid pooling algorithm, the fusion of mean intersection over union and cross information entropy loss function is introduced to improve the weight of local image region. In the experiment, Multisim software is used to simulate the circuit. The APD reverse bias voltage is set to 90 V, and the multiplication coefficient is 98.7. The feedback resistance, bandwidth, phase compensation capacitance and other parameters are further calculated. It is found that there is obvious self-excited phenomenon in the output waveform of the transresistance amplifier without phase compensation capacitor. When the feedback capacitance reaches 0.8 pF, the oscillation phenomenon is obviously reduced; further calculation shows that the bandwidth of transresistance amplifier is 230 MHz, and the noise of APD power supply is mainly caused by BUCK switching power supply switch when the bottom noise of oscilloscope is ignored. However, the noise is suppressed under the action of the back-end LDO device; after the loss function is introduced, the contour of the photoelectric image is preserved completely, and then the more accurate segmentation results are obtained.

Sign in / Sign up

Export Citation Format

Share Document